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Home >> Cadillac >> 2004 >> CTS Base, 3.2 N >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Automatic Transmission - 5L40-E (Introduction, Service & Replacement)) >> Repair Instructions >> Transmission Replacement (2.6L and 3.2L) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
    IMPORTANT: Ensure clearance is maintained between the transmission and the following:
    • The catalytic converters
    • The wiring harnesses
    • The cooler pipes
    • The propeller shaft
  1. Using the transmission jack, carefully raise the transmission to the vehicle.
    2. Fig 1: Aligning Engine Dowels
    GM785861Courtesy of GENERAL MOTORS CORP.
  2. Align the engine dowels (1) with the transmission.
    3. NOTE: Refer to Fastener Notice in Cautions and Notices.
    Fig 2: Installing 3 Lower Transmission Mounting Bolts
    GM785862Courtesy of GENERAL MOTORS CORP.
  3. Install the 3 lower transmission mounting bolts (1-2).

    Tighten: 

    • Tighten the transmission mounting bolts (2) to 75 N.m (55 lb ft).
    • Tighten the transmission mounting bolt (1) to 50 N.m (37 lb ft).

  4. Lower the rear of the transmission only enough to gain access to the remaining 3 upper transmission mounting bolts.
    5. Fig 3: Installing 3 Upper Transmission Mounting Bolts
    GM785861Courtesy of GENERAL MOTORS CORP.
  5. Install the 3 upper transmission mounting bolts (2-3).

    Tighten:  Tighten the transmission mounting bolts to 75 N.m (55 lb ft).

    6. Fig 4: Connecting Engine Wiring Harness Retaining Clips To Transmission Mounting Bolts
    GM785771Courtesy of GENERAL MOTORS CORP.
  6. Connect the engine wiring harness retaining clips (1) to the transmission mounting bolts.
  7. Install the transmission mount. Refer to Transmission Mount Replacement .
  8. Remove transmission jack from under the transmission.
    9. IMPORTANT: Replace the O-rings if cracked, cut, or distorted.
  9. Lubricate the O-rings with automatic transmission fluid.
  10. Install the O-rings onto the cooler pipes prior to inserting the cooler pipes into the transmission.
    11. Fig 5: Inserting Transmission Fluid Cooler Pipes Into Transmission
    GM785867Courtesy of GENERAL MOTORS CORP.
  11. Insert the transmission fluid cooler pipes into the transmission.
  12. Install the bolt securing the transmission fluid cooler pipe retainer to the transmission.

    Tighten:  Tighten the bolt to 25 N.m (18 lb ft).

    13. Fig 6: Installing Bolt Securing Transmission Fluid Cooler Pipes Brace
    GM785866Courtesy of GENERAL MOTORS CORP.
  13. Install the bolt securing the transmission fluid cooler pipes brace to the engine.

    Tighten:  Tighten the bolt to 50 N.m (37 lb ft).

    14. Fig 7: Aligning Torque Converter To Flexplate/Flywheel Orientation Marks
    GM785760Courtesy of GENERAL MOTORS CORP.
  14. Align the torque converter to flexplate/flywheel orientation marks made during the removal procedure.
    15. IMPORTANT: Torque converter bolts are self locking and must be replaced with NEW torque converter bolts every time the bolts are removed.
  15. Repeat the following steps for all 3 torque converter bolts:
    1. Rotate the harmonic balancer center bolt clockwise ONLY, in order to align the torque converter bolt holes in the flexplate/flywheel with the access hole in the engine block.
    2. To aid in alignment of the torque converter to the flexplate/flywheel. Install all 3 NEW torque converter bolts before fully tightening.

      Tighten:  Tighten the torque converter bolts to 63 N.m (46 lb ft).

    16. Fig 8: Pressing Torque Converter Bolt Close Out Plug
    GM785758Courtesy of GENERAL MOTORS CORP.
  16. Press the torque converter bolt close out plug into the engine block.
  17. Install the front air deflector. Refer to Air Deflector Replacement - Front in Body Front End.
    18. Fig 9: Installing Transmission Close Out Plug
    GM785863Courtesy of GENERAL MOTORS CORP.
  18. Install the transmission close out plug.
    19. Fig 10: Connecting Wiring Harness Clips To Transmission
    GM785869Courtesy of GENERAL MOTORS CORP.
  19. Connect the wiring harness clips to the transmission.
    20. Fig 11: View Of Transmission Wiring Harness Connector & Locking Latch
    GM785868Courtesy of GENERAL MOTORS CORP.
  20. Connect the transmission wiring harness connector (1) to the transmission by rotating the locking latch (2) clockwise.
  21. Install the catalytic converter hanger bracket. Refer to Catalytic Converter Hanger Bracket Replacement in Engine Exhaust.
    22. Fig 12: Securing Front Propeller Shaft To Shift Control Lever With Mechanics Wire
    GM787650Courtesy of GENERAL MOTORS CORP.
  22. Remove the mechanics wire (2) securing front propeller shaft (1) to the shift control lever (3).
    23. Fig 13: View Of Propeller Shaft Coupler
    GM801931Courtesy of GENERAL MOTORS CORP.
  23. Install the propeller shaft coupler (1) to the transmission flange. Refer to Propeller Shaft Replacement (Automatic Transmission) , Propeller Shaft Replacement (Manual Transmission) or Propeller Shaft Replacement (CTS-V) in Propeller Shaft.
    24. Fig 14: Identifying Shift Linkage
    GM785877Courtesy of GENERAL MOTORS CORP.
  24. Place the transmission in the park position by rotating the shift shaft fully counter clockwise.
  25. Connect the shift linkage to the transmission.
  26. Install the transmission manual shift shaft nut.

    Tighten:  Tighten the transmission manual shift shaft nut to 15 N.m (11 lb ft).

  27. Install the exhaust system. Refer to Exhaust System Replacement (LA3, LY9) , Exhaust System Replacement (LY7) or Exhaust System Replacement (LS6) in Engine Exhaust.
  28. Check the transmission fluid level (fill if necessary). Refer to Transmission Fluid Checking Procedure .
  29. Adjust the shift control linkage. Refer to Shift Control Linkage Adjustment .
  30. Lower the vehicle.
  31. The transmission control module must be programmed with the proper software/calibrations. Refer to Transmission Control Module Programming Procedure .
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